The order of banning the trade of alcoholic drinks was issues in the mosque
حَدَّثَنَا عَبْدَانُ، عَنْ أَبِي حَمْزَةَ، عَنِ الأَعْمَشِ، عَنْ مُسْلِمٍ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ لَمَّا أُنْزِلَ الآيَاتُ مِنْ سُورَةِ الْبَقَرَةِ فِي الرِّبَا، خَرَجَ النَّبِيُّ صلى الله عليه وسلم إِلَى الْمَسْجِدِ، فَقَرَأَهُنَّ عَلَى النَّاسِ، ثُمَّ حَرَّمَ تِجَارَةَ الْخَمْرِ.
Narrated `Aisha: When the verses of Surat "Al-Baqara"' about the usury Riba were revealed, the Prophet (ﷺ) went to the mosque and recited them in front of the people and then banned the trade of alcohol.